* add custom chat_template
* add custom chat_template
* add unittest
* fix
* add docs
* fix comment
* add offline chat
* fix unit test
* fix unit test
* fix
* fix pre commit
* fix unit test
* add unit test
* add unit test
* add unit test
* fix pre_commit
* fix enable_thinking
* fix pre commit
* fix pre commit
* fix unit test
* add requirements
* [feat] extra parameters are all passed directly via http payload now, or in extra_body if using openai client
* [fix] delete ci test case for enable_thinking
* [fix] add reasoning_parser when server starts
* [fix] fix ci consistency test error with reasoning parser
* [doc] update docs related to metadata
* [fix] cancel enable_thinking default value